User manual ALTO L-8

[. . . ] User's Manual L-8 8-CHANNEL MIXING CONSOLE WITH DIGITAL EFFECTS LTO www. altoproaudio. com Version 1. 2 August 2004 R English SAFETY RELATED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN the recommended fuse type as indicated in this manual. Before replacing the fuse, make sure that the product is OFF and disconnected from the AC outlet. Protective Ground This symbol, wherever used, alerts you to the presence of un-insulated and dangerous voltages within the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death. This symbol, wherever used, alerts you to important operating and maintenance instructions. [. . . ] The gain range goes from -15dB to +15dB and the center frequency is 80 Hz. D F X +15 2 / 0 +15 8 POST (PRE) 8 PAN LEFT 0 RIGHT PEAK - +15 LEVEL 9 8 4. 6 AUX SEND 9 0 These two controls are used to adjust the level of the signal sent to AUX buses, and their adjustable range goes from to +15dB. AUX1 is configured as PRE-FADER, so, generally, it can be used for monitor application. While AUX2 is configured as POST-FADER, therefore, most of the times, it will be used for effects and processors input, however, you can also changed it to PRE-FADER configuration according to the specific application. (For more detail, please see chapter 6. ) In this typical compact unit, excluding sending out directly to the external effect or processor equipment, AUX SEND2 will also be sent to the internal onboard effect module. -15 -15 EQ HI 12kHz 0 +15 MID 2. 5kHz -12 0 +12 LOW 80Hz +15 0 1 AUX PRE 4. 7 PAN 10 - This is the PANORAMA control, or balance control. Keep this control in center position and your signal will be positioned in the middle of stage. Turn this control fully counterclockwise and the signal will be present only on the left speaker and vice-versa. Of course a wide number of intermediate positions is available. D F X +15 2 / 0 +15 8 9 POST (PRE) 8 PAN 10 4. 8 PEAK 11 LEFT 0 RIGHT Inside your L-8 the audio signal is monitored in several different stages and then sent to the PEAK Led. When this Led blinks, it warns you that you are reaching signal saturation and possible distortion. The PEAK Led will blink with a level that is 6dB before actual clipping. 11 PEAK 12 +15 LEVEL 4. 9 LEVEL 12 This Control will adjust the overall level of this channel and set the amount of signal sent to the Main output. 4. 10 INSERT 13 Insert points are provided for the Mono Mic Channels. When you insert a jack in the insert socket, the signal will be taken out after the Input Gain Control (Trim), sent to an external processor such a compressor-limiter, and returned into the channel strip immediately before the EQ section. Of course, the jacks used must be stereo (Tip Send/ Ring Return). CHANNEL INSERT (PRE-FADER/PRE-EQ TIP SEND/RING RETURN) CH4 CH3 CH2 CH1 13 10 8 4. 11 MASTER SECTION - MAIN MIX LEVEL 14 This Control sets the amount of signal sent either to the Main Out socket or to the Tape Output. - LED METER 15 This stereo 12 segments Led Meter will indicate the level of the overall output signal. - 2 TRACK signal path 16 19 20 15 If you push down the 2TK TO CONTROL ROOM button, the 2 TRACK IN signal will be routed into the Control Room output and the level will be adjusted by the Control Room knob nearby the Main MIX LEVEL knob. If you push the 2TR TO MIX button the 2 TRACK IN signal will be routed into the MAIN output and will be adjusted by the MAIN MIX LEVEL knob. 0 L CLIP 10 7 R 18 +15 AUX2/DFX TO AUX 1 0 POWER PHANTOM 8 4 2 0 - AUX RETURN 17 17 +15 AUX RTN 1 0 -2 8 As implied in the name, the Auxiliary Returns are used to 'return' the signal from the external effects or processors to the main mix, but, most of the times, it can also be worked as the additional stereo line inputs. In this typical compact unit: AUX RETURN1 is configured to be assigned to the main mix bus permanently, for mono application, only use the left input jack. But for AUX RETURN2, instead of assigning the returned signal to main mix bus, it can also to AUX1 bus, and in this case, adjust AUX2/DFX TO AUX1 knob (18) to control the input level. Normally, AUX RETURN2 is connected rightly with the output of the internal digital effects, but, this signal flow will be broken, if you have any external signal inserted from these two jacks. 8 -4 -7 2TK TO MIX -10 -20 +15 AUX RTN 2 (DFX) -30 2TK TO CTRL ROOM OUTPUT LEVEL 0 - MAX CONTROL ROOM - +15 PHONES / 8 MAIN MIX LEVEL 21 16 8 14 - POWER LED 19 This LED indicates when the Power is on in your L-8. - PHANTOM LED 20 This LED indicates when the Phantom Power is switched on. - PHONES/CONTROL ROOM 21 This Control sets the amount of signal sent to the Control Room and headphone. 11 - 24 BIT DIGITAL EFFECTS PRESETS 22 22 Adjust this knob to select the right effect you wish to perform. There are total 16 options for you: several kinds of reverb, mono and stereo delay, effects with modulation, and versatile two-effect combination. 15 14 13 12 11 16 1 2 3 4 5 6 10 9 8 16 1 7 PRESETS VARIATIONS 23 23 Since you have selected the preferable effect, the next step, please go with the fine consideration, there are also total 16 variations for each preset, Each variation may be managed by several different factors. 15 14 13 12 11 2 3 4 5 6 1. REVERB + CHORUS 10 9 8 7 VARIATIONS DFX MUTE PEAK 24 25 MUTE SWITCH 24 This switch is used to activate/deactivate the effect facility. Sometimes, you can also use the DFX FOOTSWITCH for convenient operation. PEAK LED 25 This LED lights up when the input signal is too strong. In case of the digital effect module being muted, this LED also lights up. - DFX FOOTSWITCH 26 DFX FOOTSWITCH This 1/4" phone jack can be used to connect an external footswitch to turn on/off the onboard effect module. 26 - PHONES 27 27 PHONES This socket will send out the mix signal to a pair of headphones. - STEREO AUX RETURN 28 Use these stereo 1/4" phone socket to return the sound of an effect unit or sound processor to the Main Mix. Alternatively you can use them as an extra auxiliary input. STEREO AUX RETURN LEFT(MONO) RIGHT AUX SEND 1 L 2-TRACK IN/OUT 1 - AUX SEND 29 LEFT RIGHT R 2 2 These 1/4" phone sockets are used to send out the signal from the AUX Bus to external devices such as effects and sound processors. TAPE IN TAPE OUT 28 29 30 12 - 2-TRACK IN/OUT Input 30 Use the Tape input if you wish to listen to your Mix from a Taper Recorder or DAT, you can assign the signal coming form the Taper Recorder either to a pair of studio monitor using the Control Room assignment on the front panel or directly to the Main Mix. Output These 1/4" TRS sockets will route the main mix into a tape recorder. 4. 12 REAR PANEL DESCRIPTION 31 POWER ON 4 PHANTOM CAUTION: MAIN MIX OUTPUT (BAL/UNBAL) RIGHT LEFT Use only with a 250V fuse CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN REPLACE WITH THE SAME TYPE FUSE AND RATING DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE WARNING: SHOCK HAZARD - DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR OFF CONTROL ROOM OUTPUT 2 3 1 2 3 1 LEFT LEFT AC INPUT EUROPE 210-240V 50Hz Fuse:T250mAL RATED POWER CONSUMPTION: 25W RIGHT RIGHT 32 USA / Canada 100-120V 60Hz Fuse:T500mAL UK / Aust 240V 50Hz Fuse:T250mAL 33 34 - POWER 31 This switch is used to turn the Main Power ON and OFF. - PHANTOM 4 This switch will apply +48 Volt Phantom Power only to the 5 XLR microphone inputs. Never connect microphones when the Phantom Power is on already. - AC INLET WITH FUSE HOLDER 32 Use it to connect your L-8 to the Main AC with the supplied AC cord. [. . . ] 82 67 67 67 60 49 49 49 82 67 67 67 60 49 49 49 Rev level 80% 80% 80% 80% 80% 80% 80% 80% 90% 90% 90% 90% 90% 90% 90% 90% 15. REVERB+FLANGER No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Rev Time 2. 90 2. 90 2. 90 2. 90 2. 90 2. 90 2. 90 2. 90 1. 50 1. 50 1. 50 1. 50 1. 50 1. 50 1. 00 1. 00 Room Size 39 39 39 39 39 39 39 39 26 26 26 26 26 26 26 26 Mod. 2. 52 2. 25 1. 99 1. 61 1. 22 0. 80 0. 54 0. 16 2. 52 2. 25 1. 99 1. 61 1. 22 0. 80 0. 54 0. 16 Pitch. 40 40 40 40 60 60 70 70 40 40 40 40 60 60 70 70 Rev level 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 90% 23 16. [. . . ]